I touched on the tanking of the AO and NAO in this morning’s Europe post and video but here’s a great graphic produced by Ralph Fato on just how rare this ‘tanking’ is if it comes off.
What may this mean for the US in October? More extreme weather such as the extreme amplification of the pattern we’re currently seeing develop for this weekend.
Just look at that ridge-trough setup which will support mid July heat wave conditions in California where it snows in Minnesota. We’re seeing sticking snow in many western parts of Montana today.
[s2If current_user_can(access_s2member_level1)]
With a tightly wound, sub 988 low over Ontario, you’ve got extremes across the Lower 48 with record heat in California, heavy snow in parts of Montana while flooding rains and severe weather break out on the Plains.
ECMWF surface maps through 36 hrs.
Severe weather has and is breaking out as of this writing.
Model suggests big snows over Ontario thanks to that 988 low.
This was the scene in Montana this morning.
Yep, it sure was cold in the Colorado Rockies. Look at Berthoud Pass LATE AFTERNOON.
In contrast, we’re talking record heat in Southern California. Upper 90s for several spots in and around the LA Basin. Saturday is considered one of the hottest days and the below forecasted highs may be conservative.
Interestingly by mid to late next week the trough is replaced by a ridge and warmer than normal air once again.
CFSv2 shows the cold coming down and across only to be followed by more warmth.
Continues to fit my overall thinking for this month and remainder of fall which is cold with snow in the Rockies, possibly the Plains but warmer than normal in the East.
[/s2If][s2If current_user_cannot(access_s2member_level1)][magicactionbox id=”18716″][/s2If]
Recent Comments